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Hybrid Approach for Modeling Chemical Kinetics and Turbulence Effects on…

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
701 McMillian Way, NW Ste D HUNTSVILLE, AL 35806-2922
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Woman-Owned: Yes
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: Hybrid Approach for Modeling Chemical Kinetics and Turbulence Effects on Combustion-Instability
Agency: NASA
Contract: NNX11CG64P
Award Amount: $99,923.00


Combustion instabilities pose a significant technical risk in the development of liquid and solid rocket motors. Much of the effort in modeling combustion instabilities has focused either on systems-level tools, or use of detailed computational fluid dynamics (CFD) to simulate all the involved processes. The important effects of finite-rate chemical kinetics and turbulence-chemistry interactions have been neglected in combustion instability modeling. In this SBIR project, CFD Research Corporation (CFDRC) will team up with Gloyer-Taylor Laboratories (GTL) to develop a hybrid approach by combining CFD capabilities with a systems-level instability modeling approach, the latter based on the Universal Combustion Device Stability (UCDS) process. These capabilities will be used to quantify the effects of finite-rate chemistry and turbulence-chemistry interactions on combustion instabilities. In Phase I, feasibility of the proposed approach will be demonstrated by combining 2-D Reynolds Averaged Navier Stokes and Large Eddy Simulation computations with the UCDS framework. In Phase II, the instability analysis will be enhanced by coupling: (1) 3-D CFD analysis; and (2) Improved UCDS process with more accurate treatment of boundary conditions and the flame. The proposed approach will enable an accurate combustion instability analysis of rocket motors, gas turbine combustors, and ramjet and scramjet engines.

Principal Investigator:

Ranjan S. Mehta
Principal Investigator

Business Contact:

Silvia Harvey
Business Official
Small Business Information at Submission:

CFD Research Corporation
AL Huntsville, AL 35805-1944

EIN/Tax ID: 630944385
Number of Employees:
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No